ASTROSAT CZTI

Data Quality Report

Orbit 42317

Creation date: 2024-06-27T22:38:54.345401
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A12_102T01_9000005794_42317cztM0_level2.fits modeM0/AS1A12_102T01_9000005794_42317cztM0_level2_quad_clean.evt
Size (bytes)278,807,04085,844,160
Size265.9 MB 81.9 MB
Events in quadrant A2,648,565574,004
Events in quadrant B2,254,268581,376
Events in quadrant C2,328,486569,290
Events in quadrant D2,696,885522,399

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0340
C0340
D0340

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109832
B0103842
C0101943
D0116442

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5028160.318218%
B5028270.536993%
C502730.059678%
D5027691.372588%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7091 5029 7 7 0.10% 0.14%
B 7091 5029 16 16 0.23% 0.32%
C 7090 5028 0 0 0.00% 0.00%
D 7090 5028 74 74 1.04% 1.47%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 83 544229 4988.13 535 524 109.0
A 13 6 10684 93.21 535 524 109.0
A 13 254 7854 67.25 535 524 109.0
B 5 172 49830 478.62 535 520 103.0
B 15 35 42328 405.81 535 520 103.0
B 5 255 33348 318.64 535 520 103.0
C 15 214 208902 1679.06 535 538 124.1
C 3 233 22841 179.72 535 538 124.1
C 12 249 9366 71.14 535 538 124.1
D 1 52 146450 1147.58 528 515 127.2
D 12 6 124137 972.12 528 515 127.2
D 2 249 112841 883.29 528 515 127.2

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter